Thermal container
By incorporating vacuum insulation layers within the container body and lid, and designing a dual-barrier structure, the problem of rapid heat loss from insulated containers is solved, achieving comprehensive insulation and enhanced safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SUPOR COOKWARE
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-24
AI Technical Summary
Commercially available insulated containers often have large openings at the top, leading to rapid heat loss and a short insulation time.
Vacuum insulation layers are installed inside both the container body and the container lid. The vacuum insulation layer of the container lid extends into the top opening of the container body and together with the vacuum insulation layer of the container body, they enclose an insulation space. At the same time, the container lid is detachable and has a structural design that doubles the resistance to heat transfer.
It achieves all-around insulation, reduces the chance of heat leakage through the gap between the container lid and the container body, improves the insulation effect and safety of use, and meets the needs of various users.
Smart Images
Figure CN224540039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of containers, specifically to an insulated container. Background Technology
[0002] Currently, most insulated containers on the market have relatively large openings at the top for convenient food storage. This causes heat to escape quickly from the top opening, resulting in a shorter insulation time. Utility Model Content
[0003] Therefore, the purpose of this utility model is to provide a heat-insulating container with good heat preservation effect.
[0004] One embodiment of the present invention provides a heat-insulating container, which includes: a container body, wherein the bottom wall and side wall of the container body are provided with a first vacuum insulation layer; and a container lid, which is provided at the top opening of the container body, wherein the container lid is provided with a second vacuum insulation layer, the second vacuum insulation layer extends into the top opening of the container body, and together with the first vacuum insulation layer, encloses the heat-insulating space inside the container body.
[0005] The insulated container provided in this embodiment not only has a vacuum insulation layer inside the container body, but also a vacuum insulation layer inside the container lid. The second vacuum insulation layer inside the container lid and the first vacuum insulation layer inside the container body together enclose the insulated space inside the container body, which is beneficial for achieving all-round insulation inside the insulated space. Moreover, the second vacuum insulation layer extends into the container body to a certain depth, and the container lid will also extend into the container body to a certain depth, which can reduce the probability of heat leakage from the container body through the gap between the container lid and the container body, resulting in good insulation effect.
[0006] Furthermore, in some embodiments, the container lid includes: a lid body, which covers the top opening of the container body; and an insulating lid, which extends into the top opening of the container body, having a second vacuum insulation layer inside, and the insulating lid is attached to the inner surface of the side wall of the container body, or is fixedly or detachably connected to the lid body.
[0007] In these embodiments, the container lid includes a separate lid body and an insulated lid. This design facilitates the separate processing and shaping of each part, and also ensures that any upward heat transfer from the container interior is effectively blocked by both the insulated lid and the lid body, resulting in good heat preservation. Furthermore, by positioning the insulated lid, which has a second vacuum insulation layer inside, below the lid body, the heat transfer from the insulated space to the lid body located above is significantly reduced due to the barrier provided by the second vacuum insulation layer. This effectively lowers the chance of users being burned by the container lid's exterior and improves product safety.
[0008] Furthermore, if the heat insulation cover is placed on the inner surface of the side wall of the container, it is relatively independent from the main body of the cover. On the one hand, it is convenient to clean and replace the heat insulation cover and the main body of the cover separately; on the other hand, when users want to speed up the cooling process, they can leave the heat insulation cover out and only cover the main body of the cover. This can prevent external dust from entering the container and speed up the cooling process, thus meeting various user needs and improving the user experience.
[0009] If the heat-insulating cover is connected to the cover body, the cover body and the heat-insulating cover can be moved synchronously when closing and opening the cover, making operation convenient. Furthermore, it allows the heat-insulating cover to be easily inserted into the container to a certain depth by pressing down the cover body. The heat-insulating cover can be fixedly connected to the cover body or detachably connected to it. If both are detachable, it facilitates separate cleaning and replacement of the heat-insulating cover and cover body, and also allows for easy removal of the heat-insulating cover to separately cover the cover body, improving the user experience.
[0010] Furthermore, in some embodiments, the bottom of the cover body has connecting ribs that are circumferentially distributed around the center line of the container body and protrude downwards, and the heat-insulating cover is connected to the connecting ribs. This simplifies the manufacturing process of the cover body by requiring only a connecting structure on the connecting ribs to connect with the heat-insulating cover. Moreover, the design of the connecting ribs also allows the heat-insulating cover to extend further into the container body, improving the insulation effect.
[0011] Furthermore, in some embodiments, the upper part of the heat insulation cover is connected to the inner sidewall of the connecting rib, and the lower part of the heat insulation cover protrudes outward circumferentially from the connecting rib; and / or the outer sidewall of the connecting rib is provided with a first sealing element, the first sealing element being used to tightly fit against the inner surface of the sidewall of the container body.
[0012] In these embodiments, if the inner wall of the connecting rib is connected to the heat insulation cover, and the outer wall of the connecting rib is connected to the first sealing element, this satisfies both the connection between the cover body and the heat insulation cover, and also allows the first sealing element to seal the gap between the cover body and the side wall of the container body. This ensures that even if heat flows upward through the gap between the heat insulation cover and the container body, it can be quickly blocked by the first sealing element, resulting in good heat insulation. Furthermore, making the lower part of the heat insulation cover circumferentially protrude outward from the connecting rib reduces the gap between the heat insulation cover and the side wall of the container body, thus reducing heat leakage.
[0013] Furthermore, in some embodiments, one of the connecting ribs and the heat insulation cover is provided with a slot, and the other is provided with a retaining rib, which is engaged in the slot. The structure is simple, easy to process, and easy to assemble.
[0014] Furthermore, in some embodiments, the connecting rib is provided with a first connecting thread, and the heat insulation cover is provided with a second connecting thread. The connecting rib and the heat insulation cover are screwed together by the first and second connecting threads. The connection is firm and easy to assemble and disassemble. Moreover, it can prevent moisture in the insulation space from entering between the cover body and the heat insulation cover through the assembly gap between the heat insulation cover and the connecting rib. Furthermore, in some embodiments, the heat-insulating cover and the cover body are detachably connected, forming a storage cavity between them. This storage cavity can hold items such as tableware, eliminating the need for the user to place additional tableware and improving the user experience.
[0015] Furthermore, in some embodiments, the container lid includes: a lid body, the upper part of which is attached to the top of the side wall of the container body, the lower part of which is recessed inward to extend into the top opening of the container body, and the lid body forming a second vacuum insulation layer.
[0016] In these embodiments, the container lid does not require a separate heat insulation cover; instead, a second vacuum insulation layer is directly installed within the lid body. This results in a simple lid structure and cost savings. Furthermore, the second vacuum insulation layer can extend partially into the container body and partially to the upper side wall of the container body, which facilitates the creation of an all-around heat-insulating space and provides excellent heat preservation.
[0017] Furthermore, in some embodiments, the container lid includes a second seal disposed on the lower outer periphery of the lid body to fit tightly against the inner surface of the side wall of the container body; and / or the lid body is threadedly connected to the side wall of the container body. This prevents heat from escaping from the insulated space through the gap between the lid body and the container body.
[0018] Furthermore, in some embodiments, the first vacuum insulation layer extends to the top of the side wall of the container, and the second vacuum insulation layer extends into the top opening of the container to a depth ranging from 5mm to 30mm. The second vacuum insulation layer extends deep enough into the container, below the highest point of the first vacuum insulation layer by a certain distance, resulting in good heat preservation of the insulation space.
[0019] Furthermore, in some embodiments, the inner diameter of the top opening of the container body ranges from 100 mm to 140 mm. The top opening of the container body is large enough to facilitate the insertion or removal of food into the receiving cavity.
[0020] Furthermore, in some embodiments, the container lid includes a first metal disc and a second metal disc, which are joined together to form a second vacuum insulation layer. This design, where the second vacuum insulation layer is formed by the metal discs, provides good high-temperature resistance and is less prone to deformation.
[0021] Furthermore, in some embodiments, the insulated container is an insulated cooking pot.
[0022] Other aspects and / or advantages of the present invention will be set forth in part in the description which follows, and in part will be clear from the description or may be learned by practice of the present invention. Attached Figure Description
[0023] The above and other objects and features of this utility model will become clearer from the following description of embodiments in conjunction with the accompanying drawings, in which: Figure 1 This invention provides a schematic longitudinal cross-sectional view of the insulated container of the first embodiment of the present application with the container lid closed on the container body. Figure 2 This invention provides a partial longitudinal sectional view of the insulated container of the first embodiment of the present application with the container lid closed on the container body. Figure 3 A partial longitudinal cross-sectional view of the insulated container of the first embodiment of this application is shown when the container lid pops off the container body; Figure 4 A split schematic diagram of the container lid according to the first embodiment of this application is shown; Figure 5 A partial cross-sectional schematic diagram of the container lid according to a second embodiment of this application is shown; Figure 6 A longitudinal sectional view of the container lid according to a second embodiment of this application is shown; Figure 7 A longitudinal cross-sectional view of the insulated container according to the second embodiment of this application is shown when the container lid is closed on the container body; Figure 8 A partial longitudinal sectional view of the insulated container according to the second embodiment of this application is shown when the container lid is closed on the container body.
[0024] Figures 1 to 8 Explanation of icon numbers: 100 Container body; 110 Side wall; 120 Bottom wall; 130 First vacuum insulation layer; 200 Container lid; 210 Lid body; 211 Connecting rib; 212 Slot; 213 First connecting thread; 220 Insulating lid; 221 Slot; 222 Second connecting thread; 230 Second vacuum insulation layer; 240 Storage cavity; 250 First sealing element; 260 Second sealing element; 271 First metal disc; 272 Second metal disc; 300 cubic meters of insulated space. Detailed Implementation
[0025] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but may be changed as will become clear upon understanding this disclosure, except for operations that must occur in a specific order. Furthermore, for clarity and conciseness, descriptions of features known in the art may be omitted.
[0026] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein, which will become clear upon understanding the disclosure of this application.
[0027] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more.
[0028] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Thus, without departing from the teaching of the examples described herein, the first component, first assembly, first region, first layer, or first part referred to as the first component, first assembly, first region, first layer, or first part may also be referred to as the second component, second assembly, second region, second layer, or second part.
[0029] In the specification, when an element such as a layer, region, or substrate is described as being "on" another element, "connected to," or "bonded to" another element, the element may be directly "on" another element, directly "connected to," or "bonded to" the other element, or one or more other elements may be present in between. Conversely, when an element is described as being "directly on" another element, "directly connected to," or "directly bonded to" another element, no other elements may be present in between.
[0030] The terminology used herein is for the purpose of describing various examples only and is not intended to limit disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term “a plurality” represents any quantity of two or more.
[0031] The directional terms “above,” “below,” “top,” and “bottom” used in this application, unless otherwise specified, are based on the orientation of the product when it is in normal use.
[0032] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains after understanding the invention. Unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and in this invention, and shall not be interpreted in an idealized or overly formalistic manner.
[0033] The following will combine Figures 1 to 8 This invention introduces an insulated container provided by an embodiment of the present invention.
[0034] like Figure 1 and Figure 7 As shown, one embodiment of the present invention provides a heat-insulating container, which includes: a container body 100, wherein the bottom wall 120 and the side wall 110 of the container body 100 each have a first vacuum insulation layer 130; a container lid 200, which is provided on the top opening of the container body 100, and the container lid 200 has a second vacuum insulation layer 230 inside, the second vacuum insulation layer 230 extending into the top opening of the container body 100, and together with the first vacuum insulation layer 130, enclosing the heat-insulating space 300 inside the container body 100.
[0035] The insulated container provided in this embodiment not only has a vacuum insulation layer inside the container body 100, but also a vacuum insulation layer inside the container lid 200. The second vacuum insulation layer 230 inside the container lid 200 and the first vacuum insulation layer 130 inside the container body 100 together enclose the insulated space 300 inside the container body 100, which is beneficial for achieving 360° all-round insulation inside the insulated space 300. Moreover, the second vacuum insulation layer 230 extends into the container body 100 to a certain depth, and the container lid 200 will also extend into the container body 100 to a certain depth, which can reduce the probability of heat escaping from the inside of the container body 100 through the gap between the container lid 200 and the container body 100, resulting in good insulation effect.
[0036] It should be noted that the container body 100 of this application is the same as the prior art by default, which is a receiving cavity with an opening at the top formed by the side wall 110 and the bottom wall 120. Therefore, those skilled in the art can understand that the heat preservation space 300 is actually part of the receiving cavity.
[0037] Regarding the specific structure of the container lid 200, further, in some embodiments, such as Figure 2 and Figure 3 As shown, the container lid 200 includes: a lid body 210, which covers the top opening of the container body 100; and a heat insulation lid 220, which extends into the top opening of the container body 100. The heat insulation lid 220 has a second vacuum insulation layer 230 inside. The heat insulation lid 220 is mounted on the inner surface of the side wall 110 of the container body 100, or is fixedly connected to or detachably connected to the lid body 210.
[0038] In these embodiments, the container lid 200 includes a separate lid body 210 and a heat-insulating lid 220. This facilitates the separate processing and molding of each part. Furthermore, if heat inside the container body 100 is to be transferred upwards, it will be doubly hindered by the heat-insulating lid 220 and the lid body 210, resulting in good heat preservation. Moreover, by positioning the heat-insulating lid 220, which has a second vacuum insulation layer 230, below the lid body 210, the heat inside the insulation space 300 is rarely transferred to the lid body 210 located above, effectively reducing the chance of users being burned by the exterior of the container lid 200 and improving product safety.
[0039] Furthermore, if the heat insulation cover 220 is placed on the inner surface of the side wall 110 of the container body 100, it is relatively independent from the cover body 210. On the one hand, it is convenient to clean and replace the heat insulation cover 220 and the cover body 210 separately; on the other hand, when the user wants to speed up the cooling process, the heat insulation cover 220 can be omitted, and only the cover body 210 can be placed. This can prevent external dust from entering the container body 100 and speed up the cooling process, thus meeting various user needs and improving the user experience.
[0040] Furthermore, in this case, when the cover body 210 is placed over the top opening of the container body 100, the cover body 210 can press down on the heat insulation cover 220 to prevent the air pressure in the heat insulation space 300 from rising and lifting the heat insulation cover 220, thus affecting the heat insulation effect.
[0041] If the heat-insulating cover 220 is connected to the cover body 210, the cover body 210 and the heat-insulating cover 220 can be moved synchronously when the cover is closed and opened, making operation convenient. Furthermore, it is convenient to press down the cover body 210 to insert the heat-insulating cover 220 into the container body 100 to a certain depth. The heat-insulating cover 220 can be fixedly connected to the cover body 210 or detachably connected to it. If both are detachable, it is convenient to clean the heat-insulating cover 220 and the cover body 210 separately, facilitates individual replacement, and allows for the removal of the heat-insulating cover 220 to cover the cover body 210 alone, improving the user experience.
[0042] Furthermore, such as Figure 2 and Figure 3 As shown, the bottom of the cover body 210 may have connecting ribs 211 that are circumferentially distributed around the center line of the container body 100 and protrude downwards. The heat insulation cover 220 can be connected to the connecting ribs 211. In this way, only a connecting structure needs to be provided on the connecting ribs 211 to connect with the heat insulation cover 220, making the cover body 210 easy to manufacture. Moreover, the design of the connecting ribs 211 also facilitates the heat insulation cover 220 to extend further into the container body 100, improving the heat insulation effect.
[0043] Furthermore, such as Figure 2 and Figure 3 As shown, the upper part of the heat insulation cover 220 can be connected to the inner sidewall 110 of the connecting rib 211, and the lower part of the heat insulation cover 220 protrudes outward from the connecting rib 211 in the circumferential direction; and / or the outer sidewall 110 of the connecting rib 211 can be provided with a first sealing member 250, which is used to tightly fit with the inner surface of the sidewall 110 of the container body 100.
[0044] If the inner wall 110 of the connecting rib 211 is connected to the heat insulation cover 220, and the outer wall 110 of the connecting rib 211 is connected to the first sealing element 250, this satisfies both the connection between the cover body 210 and the heat insulation cover 220 and the sealing element 250 seals the gap between the cover body 210 and the side wall 110 of the container body 100. Thus, even if heat in the insulation space 300 flows upward through the gap between the heat insulation cover 220 and the container body 100, it can be quickly blocked by the first sealing element 250, resulting in good insulation. Furthermore, by making the lower part of the heat insulation cover 220 circumferentially protrude outward from the connecting rib 211, the gap between the heat insulation cover 220 and the side wall 110 of the container body 100 can be reduced, thus reducing heat leakage.
[0045] As an example, the first seal 250 can be a silicone sealing ring, fitted onto the connecting rib 211. It provides a good seal, and preferably uses food-grade silicone, which will not affect the user's health.
[0046] The first sealing element 250 may include a sealing ring body and at least one sealing rib located around the outer periphery of the sealing ring body. The sealing rib fits against the side wall 110 of the container body 100, resulting in a good sealing effect. Here, the sealing rib may extend obliquely downwards or obliquely upwards. Of course, the first sealing element 250 may also have other structures, which are not listed in detail here.
[0047] In other embodiments, the heat insulation cover 220 may also be connected to the outer wall 110 of the connecting rib 211. The first sealing member 250 may also be disposed on the outer periphery of the cover body 210 or the outer periphery of the heat insulation cover 220.
[0048] Regarding the connection method between the heat insulation cover 220 and the connecting rib 211, further, in some embodiments, such as Figures 2 to 4 As shown, in the connecting rib 211 and the heat insulation cover 220, one can be provided with a slot 212, and the other can be provided with a retaining rib 221, which is inserted into the slot 212. The structure is simple, easy to process, and easy to assemble.
[0049] Furthermore, the retaining rib 221 can be made to have a certain degree of elasticity, or the groove wall of the retaining groove 212 can be made to have a certain degree of elasticity, so that the retaining groove 212 can hold the retaining rib 221 tightly, thereby improving the connection stability between the connecting rib 211 and the heat insulation cover 220.
[0050] As an example, such as Figure 2 and Figure 4 As shown, when a slot 212 is provided on the connecting rib 211 and a retaining rib 221 is provided on the heat insulation cover 220, strong pressure can be used to insert the retaining rib 221 on the heat insulation cover 220 into the slot 212 on the connecting rib 211, causing the slot 212 to contract and tighten the retaining rib 221, or even cause the connecting rib 211 to tighten the heat insulation cover 220, thus fixing the connection between the two. The heat insulation cover 220 and the connecting rib 211 are not detachable after assembly, and the connection is firm.
[0051] In other embodiments, such as Figure 5 and Figure 6 As shown, a first connecting thread 213 can be provided on the connecting rib 211, and a second connecting thread 222 can be provided on the heat insulation cover 220. The connecting rib 211 and the heat insulation cover 220 are screwed together by the first connecting thread 213 and the second connecting thread 222. The connection is firm and easy to assemble and disassemble. Moreover, it can prevent moisture in the insulation space 300 from entering between the cover body 210 and the heat insulation cover 220 through the assembly gap between the heat insulation cover 220 and the connecting rib 211. Of course, the heat insulation cover 220 and the connecting rib 211 can also adopt other connection methods, not limited to the above embodiments. For example, the heat insulation cover 220 can also be rotated and fastened to the connecting rib 211, or connected by a pin, etc.
[0052] Furthermore, in the case where the heat insulation cover 220 and the cover body 210 are detachably connected, such as Figure 2 and Figure 3 As shown, a storage cavity 240 can be formed between the heat-insulating cover 220 and the cover body 210. The storage cavity 240 can be used to store tableware and other items, eliminating the need for users to place tableware separately. It can also be used to store other items, improving the user experience.
[0053] Furthermore, the middle of the upper surface of the heat insulation cover 220 can be recessed downwards to increase the space of the storage cavity 240, making it convenient to store items of a certain volume. Alternatively, the middle of the lower surface of the cover body 210 can be recessed upwards to increase the space of the storage cavity 240. The space of the storage cavity 240 can also be increased by extending the length of the connecting rib 211.
[0054] Regarding the specific structure of the container lid 200, further in some other embodiments, such as Figure 7 and Figure 8 As shown, the container lid 200 includes: a lid body 210, the upper part of which is attached to the top of the side wall 110 of the container body 100, the lower part of which is recessed inward to extend into the top opening of the container body 100, and the lid body 210 forming a second vacuum insulation layer 230.
[0055] In these embodiments, the container lid 200 does not require a separate heat insulation cover 220; instead, the second vacuum insulation layer 230 is directly provided within the lid body 210. This results in a simpler structure for the container lid 200 and reduces costs. Furthermore, the second vacuum insulation layer 230 can partially extend into the container body 100 and partially extend above the side wall 110 of the container body 100, which facilitates the creation of a 360° all-around heat-insulating space 300, resulting in excellent heat preservation.
[0056] Furthermore, such as Figure 8 As shown, the container lid 200 may further include a second seal 260, which is disposed on the outer periphery of the lower part of the lid body 210 to fit tightly against the inner surface of the side wall 110 of the container body 100; and / or the lid body 210 is threadedly connected to the side wall 110 of the container body 100. This can prevent heat in the insulated space 300 from escaping through the gap between the lid body 210 and the container body 100.
[0057] Furthermore, when the cover body 210 has both a second seal 260 and a connecting thread, the second seal 260 can be positioned above the connecting thread. This prevents excessive friction on the second seal 260 during the screwing of the cover body 210, thereby increasing the service life of the second seal 260 and reducing noise.
[0058] Furthermore, in some embodiments, such as Figure 2 and Figure 8As shown, the first vacuum insulation layer 130 extends to the top of the side wall 110 of the container body 100, and the depth H of the second vacuum insulation layer 230 extending into the top opening of the container body 100 ranges from 5mm to 30mm. The second vacuum insulation layer 230 extends deep enough into the container body 100, below the highest point of the first vacuum insulation layer 130 by a certain distance, resulting in good insulation effect in the insulation space 300.
[0059] As an example, the depth H of the second vacuum insulation layer 230 extending into the top opening of the container body 100 can be 10mm, 15mm, 20mm, 30mm, etc.
[0060] Furthermore, in some embodiments, the inner diameter of the top opening of the container body 100 ranges from 100mm to 140mm. The top opening of the container body 100 is large enough to facilitate the insertion or removal of food into the receiving cavity. Moreover, with the second vacuum insulation layer 230 extending into the top opening of the container body 100 to a depth H of more than 5mm, the heat preservation effect is good.
[0061] Furthermore, in some embodiments, the container lid 200 includes a first metal disc 271 and a second metal disc 272, which are joined together to form a second vacuum insulation layer 230. The second vacuum insulation layer 230, formed by the metal discs, exhibits good high-temperature resistance and is not easily deformed.
[0062] As an example, the first metal disk 271 and the second metal disk 272 can be stainless steel disks.
[0063] Of course, the second vacuum insulation layer 230 can also be made of other materials, such as high-temperature resistant plastic, and is not limited to stainless steel.
[0064] Furthermore, in some embodiments, the insulated container can be an insulated pot, a thermos, etc.
[0065] While the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope thereof. It should be understood that, to those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention as defined in the claims.
Claims
1. A heat-insulating container, characterized in that, The heat-insulating container includes: The container body (100) has a first vacuum insulation layer (130) in both its sidewall (110) and bottom wall (120). A container lid (200) is provided on the top opening of the container body (100). The container lid (200) has a second vacuum insulation layer (230) inside. The second vacuum insulation layer (230) extends into the top opening of the container body (100) and together with the first vacuum insulation layer (130), encloses the heat-insulating space (300) inside the container body (100).
2. The heat-insulating container according to claim 1, characterized in that, The container lid (200) includes: The cover body (210) is provided at the top opening of the container body (100); A heat insulation cover (220) is located at the lower part of the cover body (210) and can extend into the top opening of the container body (100). The heat insulation cover (220) has a second vacuum heat insulation layer (230) inside. The heat insulation cover (220) is attached to the inner surface of the side wall (110) of the container body (100) or is fixedly or detachably connected to the cover body (210).
3. The heat-insulating container according to claim 2, characterized in that, The bottom of the cover body (210) has connecting ribs (211) that are circumferentially distributed around the center line of the container body (100) and protrude downwards, and the heat insulation cover (220) is connected to the connecting ribs (211).
4. The heat-insulating container according to claim 3, characterized in that, The upper part of the heat insulation cover (220) is connected to the inner wall (110) of the connecting rib (211), and the lower part of the heat insulation cover (220) protrudes outward from the connecting rib (211) circumferentially; and / or The outer wall (110) of the connecting rib (211) is provided with a first sealing element (250), which is used to fit tightly against the inner surface of the side wall (110) of the container body (100).
5. The heat-insulating container according to claim 3, characterized in that, Of the connecting rib (211) and the heat insulation cover (220), one is provided with a slot (212), and the other is provided with a retaining rib (221), the retaining rib (221) being inserted into the slot (212); or The connecting rib (211) is provided with a first connecting thread (213), and the heat insulation cover (220) is provided with a second connecting thread (222). The connecting rib (211) and the heat insulation cover (220) are screwed together by the first connecting thread (213) and the second connecting thread (222).
6. The heat-insulating container according to claim 2, characterized in that, Based on the fact that the heat insulation cover (220) and the cover body (210) are detachably connected, a storage cavity (240) is formed between the heat insulation cover (220) and the cover body (210).
7. The heat-insulating container according to claim 1, characterized in that, The container lid (200) includes: The upper part of the cover body (210) is attached to the top of the side wall (110) of the container body (100), and the lower part of the cover body (210) is contracted inward to extend into the top opening of the container body (100). The cover body (210) forms the second vacuum insulation layer (230).
8. The heat-insulating container according to claim 7, characterized in that, The container lid (200) further includes a second sealing element (260) disposed on the outer periphery of the lower part of the lid body (210) to fit tightly against the inner surface of the side wall (110) of the container body (100); and / or The cover body (210) is threadedly connected to the side wall (110) of the container body (100).
9. The heat-insulating container according to claim 1, characterized in that, The first vacuum insulation layer (130) extends to the top of the side wall (110) of the container body (100), and the second vacuum insulation layer (230) extends into the top opening of the container body (100) to a depth ranging from 5 mm to 30 mm; and / or The inner diameter of the top opening of the container body (100) ranges from 100 mm to 140 mm; and / or The container lid (200) includes a first metal disc (271) and a second metal disc (272), which are joined together to form the second vacuum insulation layer (230).
10. The heat-insulating container according to claim 1, characterized in that, The insulated container is an insulated cooking pot.